HEX to HSL: #004F3B

Also known as: Tailwind emerald-900

#004F3B → hsl(165 100% 15%)

Values are shown at full precision, so converting back gives exactly #004f3b. The rounded form is what you normally paste into CSS.

Step-by-step math

Every number below is computed from the input, nothing is looked up.

1. RGB ÷ 255
```
R = 0.0000
G = 0.3098
B = 0.2314
```

2. max, min, Δ

max = 0.3098
min = 0.0000
Δ = max − min = 0.3098

3. L
```
L = (max + min) / 2 = 0.1549 = 15.49%
```

4. S

S = Δ / (1 − |2L − 1|) = 1.0000 = 100.00%

5. H

max is G → H = 60° × ((B − R) / Δ + 2) = 60° × ((0.2314 − 0.0000) / 0.3098 + 2) = 164.81°

6. HSL
```
hsl(164.81 100.00% 15.49%)
```

All formats

HEX: #004f3b
RGB: rgb(0 79 59)
RGB (legacy): rgb(0, 79, 59)
HSL: hsl(164.81 100.00% 15.49%) → hsl(165 100% 15%)
HWB: hwb(165 0% 69%)
OKLCH: oklch(0.380 0.076 168.7) · oklch(38.0% 0.076 168.7)
OKLab: oklab(0.380 -0.075 0.015)
Lab (D50): lab(29.08 -26.64 5.53)
LCH (D50): lch(29.08 27.21 168.28)
Display P3: color(display-p3 0.1225 0.3047 0.2361)
Linear sRGB: color(srgb-linear 0.0000 0.0782 0.0437)

Gamut: sRGB and Display P3

#004F3B is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.076 and Display P3 reaches 0.104; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #004f3b;
  color: rgb(0 79 59);
  color: hsl(165 100% 15%);
  color: oklch(0.380 0.076 168.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.380 0.076 168.7);
}
/* arbitrary values */
class="text-[#004f3b] bg-[oklch(0.380_0.076_168.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1225 0.3047 0.2361); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #004f3b calc(l - 0.1) c h); }

Nearby colors

Closest colors in the Tailwind and CSS named palettes (OKLab distance).

Lighter and darker, same hue and chroma

#1B604B · oklch(0.440 0.076 168.7) · ΔL +0.06
#003F2C · oklch(0.320 0.076 168.7) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

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Guides: What is OKLCH?